Hi, I have a quick question which I am hoping someone can help me with so that I am armed with facts before I confront my builder and his plumber mate!
I have a Vaillant megalflow unistor with an eco tec plus boiler, all works well.
At first I could not get the water hot without having to put the central heating on, but was told that the temperature for the water is controlled via the cylinder so ignore the water temp gauge on the bolier and leave it at apporx 9 o'clock - is this right?
Second point the water and heating on/off is controlled via a control timer near the cylinder, I also have a room thermostat in the hall way (for the heating) and then there is the heating control temp knob on the bolier. Also I have TRV's on all the rads. I decided to test it at the weekend (first time) and the heating and boiler all work fine, but the rads only get hot when the TRV's are set to max 5. Any lower they get cold, so it looks like they have just an open and closed valve mechanism? Is this right? what is the point of the TRV then? what does the heating temp on the bolier do?
Please can someone assist so that I can ask the right questions. Apologies for the amny questions.
Many Thanks
I have a Vaillant megalflow unistor with an eco tec plus boiler, all works well.
At first I could not get the water hot without having to put the central heating on, but was told that the temperature for the water is controlled via the cylinder so ignore the water temp gauge on the bolier and leave it at apporx 9 o'clock - is this right?
Second point the water and heating on/off is controlled via a control timer near the cylinder, I also have a room thermostat in the hall way (for the heating) and then there is the heating control temp knob on the bolier. Also I have TRV's on all the rads. I decided to test it at the weekend (first time) and the heating and boiler all work fine, but the rads only get hot when the TRV's are set to max 5. Any lower they get cold, so it looks like they have just an open and closed valve mechanism? Is this right? what is the point of the TRV then? what does the heating temp on the bolier do?
Please can someone assist so that I can ask the right questions. Apologies for the amny questions.
Many Thanks